SQL Query for Max Per Department | Dataford Interview Questions

Write a SQL query to retrieve the maximum salary per department from two related tables.

Use the departments and employees tables. Include every department, including departments without employees or with only NULL salaries.

Output

departments

Column	Type	Description
department_idPK	INT	Unique department identifier
department_name	VARCHAR(100)	Department name

employees

Column	Type	Description
employee_idPK	INT	Unique employee identifier
employee_name	VARCHAR(150)	Employee full name
department_id	INT	Referenced department identifier
salary	NUMERIC(12,2)	Annual employee salary

Your question is SQL Query for Max Per Department. Start with the requirements and the two tables in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Write a SQL query to retrieve the maximum salary per department from two related tables.

Use the departments and employees tables. Include every department, including departments without employees or with only NULL salaries.

departments

Column	Type	Description
department_idPK	INT	Unique department identifier
department_name	VARCHAR(100)	Department name

employees

Column	Type	Description
employee_idPK	INT	Unique employee identifier
employee_name	VARCHAR(150)	Employee full name
department_id	INT	Referenced department identifier
salary	NUMERIC(12,2)	Annual employee salary

Your question is SQL Query for Max Per Department. Start with the requirements and the two tables in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.